Finding the Fourth Proportional to 12,071.56, 16,641.31 and 8,475.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,071.56 : 16,641.31 = 8,475.57 : x
2. Step 2: Convert to fraction form
   12,071.56/16,641.31 = 8,475.57/x
3. Step 3: Cross multiply
   12,071.56x = 16,641.31 × 8,475.57
4. Step 4: Simplify right side
   12,071.56x = 141,044,587.80
5. Step 5: Solve for x
   x = 141,044,587.80/12,071.56
6. Step 6: Final answer
   x = 11,684.04